Metallic vessel.



No. 7|3,959. Patented Nov. 18, I902.

' J. E. CASE 8:. W. T. CONWAY.

- METALLIC VESSEL.

(Application filed May 28, 1802.)

(No lodel.)

A TTOHN mi noams PETERS co. moruurnu. wnsmm'noa. n. c.

UNITED STATES JOHN E. CASE, OF CLIFTON SPRINGS, AND WILLIAM T. CONWAY,OF CANANDAIGUA, NEW YORK.

METALLIC VESSEL.

SPECIFICATION forming part of Letters Patent No. 713,959, dated November18, 1902.

Application filed May 28,1902. Serial No. 109,305. (No model.)

T0 to whmn it ntay concern:

Be it known that we, JOHN E. CASE, a resident of Clifton Springs, andWILLIAM T. CON- WAY, a resident of Oanandaigua, in the county of Ontarioand State of New York, citizens of the United States, have inventedcertain new and useful Improvements in Metallic Vessels, of which thefollowing is a full, clear, and exact description.

Our invention relates to improvements in metallic vessels; and theprincipal object that we have in view is the provision of an improvedbottom for all kinds of metallic vessels, said bottom being soconstructed and arranged that it will not rust or corrode and is capableof manufacture at a reduction in cost as compared with other styles ofbottoms used on certain classes of vessels.

It is well known that pails, pans, and other vessels manufactured of tin-plate or sheet metal are liable to have the bottoms thereof deterioratethrough rust when placed on the ground, in a sink, or otherwisesubjected to the action of moisture. We overcome the objection by theemployment of a non-corrosive material in the manufacture of the bottom,the same being made of galvanized sheet metal, zinc, aluminium, or thelike, although other materials may be adopted.

According to our invention the bottom consists of two pieces, one ofwhich is a plate of any suitable form and the other a ring or annulus.These two plates are joined together by an interlocking seam, which isdisposed horizontally on the under side of the plate,

so as to lie radially to the ring and be housed wholly within thelatter, and this arrangement brings the circumferential edge of theplate flush with the outer edge of the ring, whereby the bottom may beplaced in the body, so that the edge thereof will engage with the body,and the bottom may be united directly by a single solder-joint, whicheffectually closes the space between the bottom and the body against theleakage of liquid. The ring or annular member lies Within the lower edgeof the body, and it is united to "the latter preferably by bending theedges of the ring and the body into interlocking engagement, thusproviding a lower reinforced sult of prolonged or rough usage.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a vertical transverse section with the vessel shown partlyin perspective. Fig. 2 is a plan view of the two-piece bottom removedfrom the vessel. Fig. 3 is a transverse section on the line 3 3 of Fig.2; and Fig. 4 is an enlarged sectional View through a portion of thebody, the bottom, and the interior ring, showing the detailed form ofthe joints between the several parts.

The body 5 of the vessel may be of any suitable construction, shape, anddimensions, because our improved bottom is intended to be used generallyon all classes of metallic vessels in which it is desired to provide anoncorrosive bottom. As shown by Fig. 1, the body is cylindrical in formand provided with a beaded or rolled top edge 6, so as to resemble thebody of an ordinary pail; but it will be understood that we do notrestrict ourselves to this particular shape of body. The bottom consistsof two parts-i. e., a plate 7 and a ring 8and in the manufacture of thisbot-tom the plate is made by stamping it from a single piece ofnon-corrosive material, such as galvanized or zinc-coated sheet metal,zinc, aluminium, or any other metal having non corrosive properties.This plate member of the bottom is susceptible of manufacture at a verylow cost, because it can be stamped by suitable dies at one operation,and hence we make said plate member '7 exceedingly simple in form. Asshown by Figs. 1 to 3, inclusive, the plate member 7 is dished orslightly concavo-convex in cross-section, and this member is providedwith a circumferential flange, said flange and the dished form beinggiven to the member at the time it is stamped from a plate of sheetmetal.

The j other member 8 of the bottom is in the form j of a ring,having aninwardly-extending flange at its top edge and an outwardly-extendingflange at its bottom edge, said ring member of the bottom being formedof any suitable metal and made in one piece by any suitable operation.

After having manufactured the plate member and the ring member weassemble these parts together and interlock the outward flanged edge ofthe plate member to the upper flanged edge of the ring member. Thisinterlocking of the two parts is secured by a double-seamed joint, whichis shown more clearly by Figs. 3 and 4, said joint being produced indies or on a machine of any suitable well-known construction. The outerflanged edge of the plate member 7 is turned or doubled inwardly, asindicated at 9, whereas the upper flanged edge of the ring member isturned inwardly and then outwardly, as indicated at 10, this bending ofthe ring serving to provide a space in which is received the inturnededge 9 of the member 7. The doubled or folded edges 9 10 of the twomembers are interlocked tightly together, and thereby produce a seamwhich necessarily lies on the under surface of the member 7 and on theinner face of the ring member 8, said seam extending inwardly orradially in relation to the bottom. The seam thus lies wholly below andwithin the bottom, and the folded edge 9 of the plate member 7 isdisposed in flush relation with the circumferential exposed edge of thering member 8, all as more clearly shown by the drawings.

The diameter of the bottom thus produced conforms to the interiordiameter of the lower part of the metallic vessel-body 5, and the entireor complete bottom may be easily fitted into said lower part of thebody, so that the folded edge part 9 of the plate member 7 will come incontact with the inner surface of the body, and at the same time thering member 8 will also engage with the lower edge portion of the body.In our invention the ring-like member 8 is not riveted, soldered, orfastened in any common way to the lower edge of the body; but the unionbetween the body and the ring member 8 is effected by the formation ofan outwardly-trending interlocked joint, the same being shown moreclearly by Fig. 4.

The lower edge of the body 5 is doubled or folded upon itself, asindicated at 1] in order to leave an intervening space, and thecorresponding edge of the ring member 8 is bent outwardly at 12, thenupwardly at 13, and finally inwardly and downwardly at 14, thelast-mentioned part of the ring member fitting in the space left by thefolded edge 11 of the body, whereby the ring member 8 has its lower edgefolded around and securely interlocked with the bent edge 11 of thebody. A double-locked seam or joint is thus provided between the loweredges of the ring and the body, and this construction provides athickened and substantial bearing edge, which not only materiallystrengthens the vessel at the part where it rests on the floor orground, but it prevents the vessel from bending and minimizes thetendency of the scale or coating of the bottom from dropping ofi,thereby preventing rough surfaces on the bottom and exposing the metalto the deteriorating influence of water and moisture.

The manufacture of the article is completed by filling in the jointbetween the folded edge 9 of the bottom and the inner face of the bodywith a film of solder, as indicated at 15. This fusible joint unites theupper face portion of the plate member 7 and the inner side of the body5 directly together, so as to strengthen the structure at the linebetween the bottom and the body, and also prevents any leakage of fluidfrom the body into the space between the plate member and the ringmember of the bottom, thus minimizing the tendency of the bottom tocorrode by the leakage of fluid into the crevice between the body andthe bottom.

One of the special advantages of our inven tion is that the bottom isthoroughly rustproof on the inside as well as on the outside, becausethe plate member 7 is made of noncorrosive material and is joined to thebody in a manner to effectually exclude the entrance of moisture at thejoints between the several parts.

Having thus described our invention, we claim and desire to secure byLetters Patent- 1. A metallic vessel comprising a body, and anon-corrosive bottom consisting of a plate and a ring, the edge of saidplate being interlocked with the upper edge of the ring by a folded seamarranged to bring the edges of the two parts into flush relation, saidplate being united directly to the body by a fusible joint, and the ringbeing attached at its lower edge to the corresponding edge of the bodyby an interlocking joint; said body extending downwardly past the jointbetween the plate and the ring, and inclosing the latter.

2. A metallic vessel comprising a body, and a non-corrosive bottomformed by a plate and a ring which have their edges united flush withone another by an interlocking seam arranged to extend inwardly andlocated on the under side of the plate and within said ring, said ringbeing attached at its lower edge to the body and the plate being unitedto said body by a fusible joint; said body extending downwardly past thejoint between the ring and the plate, and said ring being arrangedwithin said extended portion of the body.

3. A metallic vessel comprising a body, and a non-corrosive bottomformed of two parts, one of which is a plate and the other a ring, theupper edge of said ring being united to the edge of the plate by adouble-locked seam which lies wholly below the plate and within thering, said seam extending inwardly with relation to the parts, and theedge of the plate being disposed in flush relation to the face of thering, said plate of the bottom benames to this specification in thepresence of ing united directly to the body by a fusible twosubscribingwitnesses. joint located to conceal the line. between the tJOHN E. CASE. body and the plate, and the ring being at- 1 5 tached atits lower edge to the corresponding WILLIAM 1 CONWAY edge of the body bya double-locked out- Witnesses: weirdly-trending joint or seam. MICHAELW. TUOHY,. In testimony whereof we have signed our SHERMAN I-I. REED.

